Des étoiles immortelles doivent exister dans les disques de gaz des noyaux actifs de galaxies. C'est la découverte qu'une équipe d'astrophysiciens vient de publier dans The Astrophysical Journal. Ces étoiles, qui accrètent en permanence de l'hydrogène frais, ne commenceront à brûler leur hélium seulement quand le disque de gaz du noyau actif galactique sera épuisé, très longtemps après leur durée de vie normale.
- Emissions
- Ça Se Passe Là-Haut
- #1328 : Des étoiles "immortelles" dans les noyaux actifs de galaxie
Publié le par eric simon
Eric Simon
Podcasts sur les mêmes thèmes
Sci-Fi Talk
How Sci-Fi, Horror, Fantasy And Comics Help Explore Our Own Humanity
Voir la fiche
SciFi Tech Talk
SciFi Tech Talk is the podcast where we look at a movie / TV show / book / short story and the tech involved and what it says about THE FUTURE. We may go through some older material and see how much has become reality and how far we have yet to go. And new material could be looked at from the standpoint of how long we think it will take to become reality and how far from the present does it stretch the imagination.
Voir la fiche
Scifi Friday
SciFi Friday takes you back to the early days of science fiction. Each week we explore the programs that layed the foundation for science fiction of today.
Voir la fiche
Maximizing Your Lifts with the Weight Lifting Belt
in this episode, we explore how the weight lifting belt can enhance your performance, protect your spine, and help you lift more weight safely.
Join us as we explore the benefits of the and how it can boost your performance in the gym. From stabilizing your core to helping you lift heavier weights safely, this episode covers all the reasons why this tool should be in every serious lifter’s arsenal. Learn how to use the belt correctly, when to rely on it, and why it’s essential for anyone pushing their limits in the weight room.
What Does the Weight Lifting Belt Do?
First, let’s get into what the weight lifting belt is actually for. Contrary to what some believe, it’s not just for advanced lifters or competitive powerlifters. The belt’s main function is to stabilize your core and lower back during heavy lifts by increasing intra-abdominal pressure. This pressure acts as a brace around your spine, helping you keep proper form and protecting you from strain or injury.
Voir la fiche
Podcast – Aviapod
Podcast sur l’histoire et les techniques de l'aviation
Voir la fiche
Talking Up Music Education
Reports and stories about the role of music education in schools and in the community!
Talking Up Music Education is a podcast from The NAMM Foundation hosted by Mary Luehrsen that celebrates music learning through conversations with artists, teachers and students, music business professionals, and thought leaders who are passionate about music education.
Voir la fiche